My Quora Answer to the Question, "Why have breasts been sexualized when they deem no sexual purposes?" I didn't write it, but my first thought was that this isn't a question. Rather it is an opinion.
"The second, about 300,000 years ago, had to do with females being able to choose their mates due to face-to-face sex. Until then, as in the rest of creation, sex was basically rape. The first guy in her from behind during ovulation would usually end up being the biological father of her next kid. Like a glory hole contest for paternity."
https://qr.ae/pNPe5X
